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Introducing Angle type [Issue #88] #169

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Introducing Angle type [Issue #88] #169

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b313290
Introduced Angle type [Issue #88]
jkalias Dec 8, 2020
c924790
Removed hyperbolic functions
jkalias Dec 8, 2020
437b280
cos(Angle) changed, 270deg stil not giving 0
jkalias Dec 9, 2020
bb19809
cos works for all cases
jkalias Dec 9, 2020
d4a4c3c
sin(Angle) also works as expected
jkalias Dec 9, 2020
f676bc1
removed newline
jkalias Dec 9, 2020
bb474f5
more tests for cos and sin
jkalias Dec 9, 2020
2fad678
cos and sin tests along the whole (-π,π) interval
jkalias Dec 9, 2020
4844b2a
tests and implementation for tan
jkalias Dec 9, 2020
c5828b8
Strict equality in tests, not approximate
jkalias Dec 9, 2020
2fba7c7
Removed conformance to BinaryFloatingPoint
jkalias Dec 13, 2020
79f5f7a
Added conformance to AdditiveArithmetic and other utilities
jkalias Dec 13, 2020
5f57416
Added AdditiveArithmetic tests
jkalias Dec 13, 2020
e09ef7a
Fixed conformance to Equatable, and added range containment functions…
jkalias Dec 14, 2020
131774a
Updated public access modifier style
jkalias Dec 14, 2020
949c9a2
Refactored AngleTests
jkalias Dec 16, 2020
63bdaaf
cos and sin for exact degrees
jkalias Dec 18, 2020
acd67fb
exact tan implemented
jkalias Dec 18, 2020
14c520b
inverse trigonometric functions fixed
jkalias Dec 19, 2020
9e7fb84
range containment and distance checks
jkalias Dec 20, 2020
1743914
documentation
jkalias Dec 20, 2020
56c5ffc
Angle type with trig-pi branch (#85)
jkalias Mar 21, 2021
83ba41b
Merge branch 'main' into angle-type
jkalias Mar 18, 2022
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6 changes: 6 additions & 0 deletions Sources/RealModule/Angle.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -160,6 +160,12 @@ public extension Angle {
}
}

extension Angle: Equatable {
public static func == (lhs: Angle<T>, rhs: Angle<T>) -> Bool {
lhs.radians.isApproximatelyEqual(to: rhs.radians)
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Implementations of == cannot use approximate equality because it does not fulfill the semantic requirements of ==.

}
}

private func normalize<T>(_ input: T, limit: T) -> T
where T: Real {
var normalized = input
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22 changes: 21 additions & 1 deletion Tests/RealTests/AngleTests.swift
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Expand Up @@ -103,7 +103,23 @@ where Self: BinaryFloatingPoint {
XCTAssertEqual(0, tan(Angle<Self>(degrees: 180)))
XCTAssertEqual(-.infinity, tan(Angle<Self>(degrees: 270)))
XCTAssertEqual(0, tan(Angle<Self>(degrees: 360)))

}

static func additiveArithmeticTests() {
var angle = Angle(degrees: 30)
XCTAssertEqual(Angle(degrees: 50), angle + Angle(degrees: 20))
XCTAssertEqual(Angle(degrees: 10), angle - Angle(degrees: 20))
XCTAssertEqual(Angle(degrees: 60), angle * 2)
XCTAssertEqual(Angle(degrees: 60), 2 * angle)
XCTAssertEqual(Angle(degrees: 15), angle / 2)
angle += Angle(degrees: 10)
XCTAssertEqual(Angle(degrees: 40), angle)
angle -= Angle(degrees: 20)
XCTAssertEqual(Angle(degrees: 20), angle)
angle *= 3
XCTAssertEqual(Angle(degrees: 60), angle)
angle /= 6
XCTAssertEqual(Angle(degrees: 10), angle)
}
}

Expand All @@ -114,6 +130,7 @@ final class AngleTests: XCTestCase {
Float16.conversionBetweenRadiansAndDegreesChecks()
Float16.trigonometricFunctionChecks()
Float16.specialDegreesTrigonometricFunctionChecks()
Float16.additiveArithmeticTests()
}
}
#endif
Expand All @@ -122,19 +139,22 @@ final class AngleTests: XCTestCase {
Float.conversionBetweenRadiansAndDegreesChecks()
Float.trigonometricFunctionChecks()
Float.specialDegreesTrigonometricFunctionChecks()
Float.additiveArithmeticTests()
}

func testDouble() {
Double.conversionBetweenRadiansAndDegreesChecks()
Double.trigonometricFunctionChecks()
Double.specialDegreesTrigonometricFunctionChecks()
Double.additiveArithmeticTests()
}

#if (arch(i386) || arch(x86_64)) && !os(Windows) && !os(Android)
func testFloat80() {
Float80.conversionBetweenRadiansAndDegreesChecks()
Float80.trigonometricFunctionChecks()
Float80.specialDegreesTrigonometricFunctionChecks()
Float80.additiveArithmeticTests()
}
#endif
}